Description: Reflects a copy of desired surfaces across a local or global coordinate plane.
Usage:
1. DSI prompts the user to select a surface on the screen.
2. DSI prompts the user to select a coordinate system followed by the plane of the mirror. The user may create a local coordinate system using any method available in DSI (see section 2.14 for a description of Local Coordinate System creation).
3. The user then has the option of putting the surface in a new part.